Replacing text in an array and using another function at the same time in PHP

I’m trying to use a function within an array that uses preg_replace() to replace certain commands

Below is the PHP code for observation

$traducoes = array(
    "Livro" => "Book",
    "Mesa" => "Table"
);
function translate($texto) { 
    global $traducoes;
    if($traducoes[$texto])    {
        return $traducoes[$texto];
    }    else     {
        return $texto;
    }
}

function codeReplace($string){
    $search = array(
        '/\(t\)\[(.*?)\]/',
        '/\[b\](.*?)\[\/b\]/',
        '/\[i\](.*?)\[\/i\]/',
        '/\[u\](.*?)\[\/u\]/',
        '/\[img\](.*?)\[\/img\]/',
        '/\[url\=(.*?)\](.*?)\[\/url\]/',
        '/\[code\](.*?)\[\/code\]/',
        '/\[color\=(.*?)\](.*?)\[\/color\]/'
    );
    $replace = array(
        translate("\\1"),
        '<strong>\\1</strong>',
        '<em>\\1</em>',
        '<u>\\1</u>',
        '<img src="\\1">',
        '<a href="\\1" target="_blank">\\2</a>',
        '<code>\\1</code>',
        '<span style="color:\\1;">\\2</span>'
    );
    $new = preg_replace($search, $replace, $string);
    return nl2br($new);
}


$string = 'Imprimindo [b]Negrito[/b] e [i]itálico[/i] e traduzindo (t)[Livro] na mesma frase';
echo codeReplace($string);

echo '<br><br>'.translate("Livro");

The result is this: https://i.stack.imgur.com/pCbuS.png

I wanted the result to be this: https://i.stack.imgur.com/B9iSn.png

For some reason the function is not able to translate the text before making the substitution.

>Solution :

You’re only matching the first occurrence, not all occurrences in the string. So, instead of using preg_replace, use preg_replace_callback and include the translate function inside the preg_replace_callback method.

Here is some improvement tips.

• Avoid Using Global Variables
• Use isset() to Check Array Key Existence
• Escaping Special Characters
• Applying Translation on All Matches

Here’s the improved code.

$translateDictionary = array(
    "Livro" => "Book",
    "Mesa" => "Table"
);

function translate($text, $translateDictionary)
{
    if (isset($translateDictionary[$text])) {
        return $translateDictionary[$text];
    } else {
        return $text;
    }
}

function codeReplace($string, $traducoes)
{
    $search = array(
        '/\[b\](.*?)\[\/b\]/',
        '/\[i\](.*?)\[\/i\]/',
        '/\[u\](.*?)\[\/u\]/',
        '/\[img\](.*?)\[\/img\]/',
        '/\[url\=(.*?)\](.*?)\[\/url\]/',
        '/\[code\](.*?)\[\/code\]/',
        '/\[color\=(.*?)\](.*?)\[\/color\]/'
    );

    $replace = array(
        '<strong>$1</strong>',
        '<em>$1</em>',
        '<u>$1</u>',
        '<img src="$1">',
        '<a href="$1" target="_blank">$2</a>',
        '<code>$1</code>',
        '<span style="color:$1;">$2</span>'
    );

    $new = preg_replace($search, $replace, $string);

    // Now, perform translation for (t)[...] tags
    $new = preg_replace_callback('/\(t\)\[(.*?)\]/', function ($matches) use ($traducoes) {
        return translate($matches[1], $traducoes);
    }, $new);

    return nl2br($new);
}

$string = 'Imprimindo [b]Negrito[/b] e [i]itálico[/i] e traduzindo (t)[Livro] na mesma frase';
echo codeReplace($string, $translateDictionary);

I’ve made significant changes to the codeReplace method. Please review them.

The output of the code above:

Imprimindo <strong>Negrito</strong> e <em>itálico</em> e traduzindo Book na mesma frase